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git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14789 87f5fb63-7c3d-0410-a384-fd976d0f7a62
118 lines
5.1 KiB
C
118 lines
5.1 KiB
C
/*
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* $Id: stdlib_swapstack.c,v 1.3 2005-01-02 09:07:19 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _STDLIB_HEADERS_H
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#include "stdlib_headers.h"
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#endif /* _STDLIB_HEADERS_H */
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/****************************************************************************/
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#if defined(__GNUC__)
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/****************************************************************************/
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#if defined(SMALL_DATA)
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#define A4(x) "a4@(" #x ":W)"
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#elif defined(SMALL_DATA32)
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#define A4(x) "a4@(" #x ":L)"
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#else
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#define A4(x) #x
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#endif /* SMALL_DATA */
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/****************************************************************************/
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#ifndef __PPC__
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/****************************************************************************/
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asm(" \n\
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.text \n\
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.even \n\
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\n\
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_LVOStackSwap = -732 \n\
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\n\
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.globl _SysBase \n\
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.globl ___swap_stack_and_call \n\
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\n\
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___swap_stack_and_call: \n\
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\n\
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moveml d2/a2/a3/a6,sp@- \n\
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movel sp@(20),a2 \n\
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movel sp@(24),a3 \n\
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movel "A4(_SysBase)",a6 \n\
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\n\
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movel a2,a0 \n\
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jsr a6@(_LVOStackSwap:W) \n\
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\n\
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jsr a3@ \n\
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movel d0,d2 \n\
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\n\
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movel a2,a0 \n\
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jsr a6@(_LVOStackSwap:W) \n\
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\n\
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movel d2,d0 \n\
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\n\
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moveml sp@+,d2/a2/a3/a6 \n\
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\n\
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rts \n\
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\n\
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");
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/****************************************************************************/
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#else
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/****************************************************************************/
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/* Swap the current stack configuration out, call a function provided,
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swap the stack configuration back and return. */
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int
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__swap_stack_and_call(struct StackSwapStruct * stk,APTR function)
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{
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register int result;
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StackSwap(stk);
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result = ((int (*)(void))function)();
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StackSwap(stk);
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return(result);
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}
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/****************************************************************************/
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#endif /* __PPC__ */
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/****************************************************************************/
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#endif /* __GNUC__ */
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